Heat-insulating vessel.



M. GUMBERTF HEAT INSULATING VESSEL. APPLIGATIQN FILED SEPT.18, 190a.

Patented. July 27, 1909.

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UNITED srA'r s arent orr cn.

MAX GUMBERT, or Bi nLIN, GERMANY, ASSIGNOR TO mom, oEsEtLsoHArT Winnie &KAL'rE soLiEnUNe M. B. 11., or BERLIN, GERMANY.

HEAT-IN$ULATING ,vEssEL,

Specification of Letters Patent.

l atented, July 2?, recs.

Application filed September 18, 1908. serial Hal-453,699.

ject ot the King of Prussia, German Einperor, and resident of 44Elisahethufer, Berlin, Germany have invented certain new and usefulImprovements in Heat-Insulating Vessels, of which the following is aspecification.

This invention relates to heat insulating vessels of the Dewar type-2'.6, those in which a double walling is employed with an evacuated spacebetween the Walls.

The object of the present invention is to provide such'vessels with itspent arrange nient for facilitating pouring out of the-contents of thevessel.

The invention is illustrated in perspective View, partly in section. inone convenient form in the accompanying drawing.

The bottle shaped vessel'a Whichis con. structed with double Wallshaving an evactu.

ated space between said Walls is at its upper edge provided with a V- orlike shaped notch Z). This notch is located at the part where the 'two'glass or li'ke walls of the vessel are fused or joined togethcr, Aroundthe neck of the bottle in the form illustrated there is arranged'aprotectingband 0 having a beak shaped spoutcZ arranged coinciding withthe V-shaped notch b'.

In the for n shown theprotective cover extends only' around. the neckbut it will be readily understood that this cover may be formed in anyconvenient manner to extend over a greater or lesser part of the surfaceof the vessel (a as desired and may be provided With'suitable carryingor supporting means as desired.

I claim:

1. In a heat insulated vessel, comprising a so receptacle part havingdouble Walls, coinciding notches in the top edges of each ofsuch Wallssaid alls being fused together around the top edge and the notches and aVacuum between the Walls and a protecting band 45 around the top andexterior part of said vesseland having a spout coinciding with saidnotch in the rece 'itaclc. I 2. In a heat insulated vessel, comprising'a receptacle part having douhle Walls coincid- 5G ing notches in the.top edges of each of such Walls said Walls being fused together aroundthe top edge and the notches and a vacuum hetween'the Walls and aprotecting metallic hand around the topand exterior part of said vesseland hav' a spout coincidingwith said notch in the receptacle. I

In a heatinsulated vessel, comprising av receptacle part hai ing doubleWalls of glass. coinciding notches in the top edges oi each 00 of suchWalls, said WflllS being fused together around the top edge and thenotches and a vacuum between -the walls and a protecting metallic bandaround the top and exterior part of said vessel and having 'a' spoutcoines ciding with said notch in the receptacle.

In witness whereof I have hereunto set in}: hand in the presence of twoWitnesses.

MAX GUMBERT.

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